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This article will explain in detail how to use the Microsoft ajax library. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.

There are four things you need to do to use ajax.ajaxMethod

Add contacts in 1:webCofig

2: add to the CS program

The code is as follows:

Protected void Page_Load (object sender, EventArgs e)

{

Ajax.Utility.RegisterTypeForAjax (typeof (NewsDrop)); / / NewsDrop is the class name of this CS file

}

Add [Ajax.AjaxMethod ()] before the method

[Ajax.AjaxMethod (Ajax.HttpSessionStateRequirement.Read)]

Add the class name when called in the JAVASCRIPT of 4:ASPX

Using AjaxMethod, you can call server-side methods asynchronously on the client side, simply calling the methods in the background .cs file in JS to do some operations that JS can't do, such as querying the database. To use AjaxMethod, you need to meet the following points:

one. If you don't have an ajax.dll file yet, download one first.

two. Add ajax.dll to the project reference: right-click the project name-- "add Project reference"-- in solution Explorer in VS. Browse and locate ajax.dll to confirm.

three. Add nodes to webCofig

If it is IIS7, you need to add it in.

2: add to the CS program

The code is as follows:

Protected void Page_Load (objectsender,EventArgse)

{

Ajax.Utility.RegisterTypeForAjax (typeof (ClassName)); / / ClassName is the class name of this CS file

}

Write the CS method with [Ajax.AjaxMethod ()] before the method

If you want to enable session to be called in AjaxMethod, write: [Ajax.AjaxMethod (HttpSessionStateRequirement.Read)]

Such as:

The code is as follows:

[Ajax.AjaxMethod ()]

Public string GetAddress (string UserID)

{

String Address= ""

/ / do somthing to get the address here

Return Address

}

Note that the method should be written as public, otherwise it will prompt "this property or method is not supported" when called in JS.

four. Make sure there are tags on the page.

five. Add the class name when called in the JAVASCRIPT of ASPX, such as:

Var address = ClassName.GetAddress ('123'). Value

This is the end of this article on "how to use Microsoft ajax Library". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.

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